Brush-making machine



1. memnwm. BRUSH MAKING MACHINE. APPLICATION FILEDJUNE 21, I918.

Patented Nov. 16,1920.

INVENTOR Jam: D. fiuwwm,

(I/ATTORNEYS J. D. GLADWIN.

BRUSH MAKING-MACHINE.

APPLICATION FILED JUNE 2|. 1913.

Patented Nov. 16, 1920.

3 SHEETS-SHEET 2.

W M MD l I VA Lw Gu DMM N H 0 U J. D. GLADWIN. BRUSH MAKING MACHINE. APPLlCATlON FILED JUNE 21. 191B.

Patented Nov. 16, 1920.

3 $HEETSSHEET 3- INVENTOR GLADWIN,

ATTORNEYS dough UNITED STATES PATENT OFFICE.

JOHN D. GLADWIN, 0F NEWARK, NEW JERSEY, ASSIGNOR T0 STAN DARD MACHINE BRUSH COMPANY, A CORPORATION OF NEW JERSEY.

BRUSH-MAKING MACHINE.

, T 0 all whom it may concern:

and useful Improvements in Brush-Making Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such aswill enable others skilled in the-art to which it appertains to make and use the same, reference being. had to the accompanying drawings, and to characters of reference marked thereon, which form a part of this specification. r

The present invention has reference, generally, to brush making machinery; and the invention relates, more particularly, to an improved construction of machine for bunching the bristle material, cutting and forming fastening staples, and'then inserting the bunched bristles together with a fastening staple into the brush back, with said staple serving to secure the bunched bristles to the brush back.

The invention has for its principal object to provide a very simple automatic machine, which is arranged and constructed to automatically feed staple'wire to a novel cutting and forming means, and then pick up and feed, in cooperating relation With the formed staple, a bunch of bristles, and finally to automatically attach the staple and bristles in secured relation to a brush back; the machine being properly timed to performits' several functions in proper sequence, and in a very simple and efficient manner. r I i P 5 Other objects of the present invention, not at this time more particularly enumerated, will be clearly understood from the following detailed description of the same.

With the various objects of the present invention in view, the same consists, primarily, in the novel construction of brush manufacturing machine hereinafter set forth; and the invention-consists, furthermore, in the novel arrangements and combinations of the variou devices and parts, as well as in the details of the construction of the same, all of which will be hereinafter more fully described in the following;

specification, and then finally embodied in the claims appended thereto. I

a head bracket 3, upon which the Specification of Letters Patent. Patented N0 16 Application filed June21, 1918. Serial No."241,11 2. Y I r The invention is clearlyillustrated in the accompanying drawings, in which F1gur e 1 1s a front elevation of the novel mechanlsm for brush making embodying the principles of my present invention.

F1g -2 1s a sectional plan view of the transmlsslon mechanism for operating the brush making elements of taken on line 2+2in said Fig. 1.

Fig.---3 is an'enlarged detail front eleva tlon of the head carrying the brushm'aking elements.

Fig. 4c is adetail face view of'the bristle V,

bunching and feeding elements in operation. Fig, 5 1 a detail plan or top View of said head carry ng the brush ,making elements, portions being broken away, and the feed plunger niechanismbeing removed.

Flg. 6 1s a transverse section taken on line the machine,

6-6 in said Fig. 5, the feed plunger mechanism being shown in this view.-

Similar. characters of reference are em--' ployed in all of the above describedviews,

to indicate corresponding parts.

Referring now to said drawings, thekref Y erence character 1 indicates the complete brush making mechanism,.the same comprising a sultable frame-work or support-.

ing structure 2 (indicated by dot and dash lines in said Fig. 1), to which is secured, in

desired location, and by any suitable means,

making elements aremounted Formed 1n said headbracket 3 is a verto be reciprocated up anddown in said guideway. Secured upon" said slide block 5 is alstaple cutting and forming die 6.

brush Connected-with said frame-work or supporting structure 2 is a vertical channeled guide member 7, in which is slidably mounted, to be reciprocatedup and down therein, a cross-head 8. Saidcross-head 8 is provided with a socket-means 9, adjacent to its outer end, in which is secured the upper end ofa plunger rod 10. Said staple cutting -and'forming die 6fis provided with a vertical guide opening '11,

through which said plunger rod 10 extends.

Connected with said head bracket 3, to the right of said gu deway i, are a pair of stationary wire guides 12, adapted to; guide staple Zwire 13 fed therethrough beneath said cutting and forming die 6, when 'the latter is raised or withdrawn to normal initial position. Arranged between said wire gu1des12 are a pair of pivoted spring Dressed 'ri 3 inedo s 14 one aboveand one D i b 23 7 below the wire 13, and so disposed as to grip the wire between their cooperating toothed free ends 15 to prevent retractive movement oi said-wire 13, while freely yielding 110721115 forward or feeding movement of said wire. V V

Connected with the outer end of said head bracket 3 is a horizontal channeled guide portion 16 in which ismounted seas tobe capable otbaclr and forth movement therein, a slide member 17. Secured to said slide.

member f 17, so as to project laterally: thereirom inalinement with said stationary wire gu des 12; are a pair of spaced wire supporting blocks 18, perforated laterally to permit the passage of staple wire therethrough. udrrangedbetween said wire-supporting blocks 18, and in supported connecengages said stop abutment 27 to determine the retracted and normal nitial position of. said slide member 17 and the wire feed- .7

tion 23 of the lever 21. 7

outerend of said guide portion16 is tail. piece 26 provided at its outer end with an upwardly extending stop abutment 27 Con-j tion withsaidslidemember 17, are a pair of pivoted s jiri'ngpressed iteedingdogs 19, one above and one below the wire 13, and so disposed as to grip the wire between theirco operating, toothed free ends 20, when the V slide member 17 moves forward, to thereby propel the wire forward through said wire guides 12 to proper position beneath said staple cutting and forming the 6, but yield- :ing to slide freely backward over the said wire when said slide member is retractedf V The means 'for reciprocating said-slide member 17, an'dfithe wirefeeding means carried thereby, comprises a lever-21 pivoted "to a fulcrum stud 22 arranged in connection;

withthe frame-work orsupporting structure 2. The lower end of said lever 21 is pivotally'connected with theslide member 1'7. The upper endof said lever 211s pro- 'vided with a cam portion 23. Connected with the side of said crosshead 8 is an outwardly projecting arm 24, having at its free end a" stud 25. which engages said cam por- Secured to the nected with the outer end of said slide member 17 is an. adjustablestop-means 28 which ing means carried thereby. A spring means 29 interconnected between said slide member 17 and Sflld. stop abutment 27 serves to retract the formerfand the wire feeding means carried thereby, to nor-.

iiial initial position after operation; the cros's head 8 risesto retract the plunger rod 10 after its operation the stud 25 moves upwardly therewith into engagement with the cam-portion 23 of the lever 21 swinging its upper end outward and thereby its inner end inward toslide inwardly the slide member 17, and the wire feeding means carriedcthereby, so as to feed beneath the staple cutting and forming die 6 a fresh portion of wire ready to be operated upon.

lVhen the'crosshead 8 moves downward the cam-portion 23 of the'lever 21 is released fromengagement by the stud 25, so that the spring means 29 may retract the slide member 17, and consequently return the forming; die 6 is an anvil member 31 over 'which the wire 131s fed preparatory to cuttlllgQallCl forming' the samecinto a staple.

The means for reciprocating said anvil memberfil comprises a lever 32 pivoted to a iulcrumbracket 33 arranged in connection with the frame-worlror supporting struc- 'tu reg2. The lower end of saidylever 32-is pivotally connected with the inner end of said anvil member 31. The upper end of said lever'82 is provided with a cam-portion 34. Connected with the body of said cross-head 8 is an outwardly projecting stud 35 which engages said cam portion 34 of the lever 82. Aspring means 36 interconnected between the lower endor arm o'tsaid lever 32-and said frame-work or supporting struc= ture2 serves toretract said lever and the anvil member connected therewith to inop-- erative position. As the cross-headfi rises to retract the plunger rod 10 after its opera ioo tion, the stud35 moves upwardly therewith into engagement with the cam portion 34 of said lever 32 swinging theupper end of said lever back to slide out said anvil member 31 to operative position. V

, One means tor producing the reciproca- 111011013 the cross-head 8, and consequently also producing the timed operation of the wii-'e-feed ng mechanism and the operation of the aiivilmember, is illustrated more par ticularly in Figs. 1 and 2. Suitably moun ed in connection with the framework or supporting structure 2 is a driving shaft 3'? having a driving pulley '38 fixed thereon over whichruns a driving belt 39 operated from any suitable source of power, such, for example, as an electriemotor 40. Fixed on said shaft is a female clutch member lit 'Mountedonsaid shaic o?- is a hollow shaft or sleeve 42, upon which is :s'pliried a mov able or shiftable male clutch member 48, capable of-being moved into coupled relation to said female clutch member 41. so

that the rotation of said driving shaft 37 may be impartedto said hollow shatter sleeve 42. Fixedoii said hollow shaft or sleeve 42 is a spur gear 44. Also mounted in connection with said frame-worker supporting structure 2 is a lay shaft 4L5, provided with a gear 16 which meshes withand is driven by said spur geared. In. like,

vided with the respective, gGZLIiSAQ ZLIlClbOf driven by a gear 51 connected with said lay shaft 15. Driven by said countershaft d7 1s a crank-member 52.. Mounted upon said fulcrum bloclr53 upon whichjis pivoted a rocking lever 54, one end of which is .op-

' eratively connected'with said cross-head 8 by a'iinl: 55, and the other end or whlch' 1s operatively connected with sa d crankmember 52 by a connecting rod 56 The rotating of said shaft 17 and the crank-member 52 oscillates said rock ng-lever 54, which int-urn produces a properly tilIlGClTQClPIW cation of said cross-head 8, andthemechanism operated therefrom.

The means for eflecting a properly timed reciprocation of said slide block 5, and the staple cutting and forming die 6 carried thereby, comprises a bracket bearing 57 associated with said head bracket 3, in which is journaled a fulcrum shaft 58. Seeured upon one end of said fulcrum shaft 58 is a lever arm 59,'having at its free end a'transverse stud 6O operatively engaged with the back of said slide block 5. Secured upon the opposite end of said fulcrum shaft 58 is a rocking arm 61. Pivotally mounted in con nection with saidframe-workor supporting structure 2 is' a bell-crank lever means 62, the upper arm of which is operatively related to said rockingarm 61 by a connecting rod 63, while'the lower arm is provided adjacent .to its free end with laterally projecting studs 6 operatlvely engaged by a cam means 65 mounted on and driven by said lay shaf 45, whereby said bell-crank lever means 62 is oscillated, and consequently causes, through the oscillation of said rocking arm' 61' and said lever arm 59, a timed reciprocation of sald slide block 5 and cutting and forming die 6. The wire guide 12 adjacent to the cutting and forming die 6 is provided with a chamfered portion 66 against which a portion of the die 6 rides, so that the adjacent lower edge of the die 6 serves to shear or cut ed the portion of wire 13 projecting from said wire guideanism is provided.

I positioned in operative relation beneath the wire,13 and in line with the cutaway portion 67 of; the die 6, as the cross-head 8' moves upward, as already above described.

; When the wire 13 isthus positioned over the anvil-member '31, the transmission mechanism for operating the die 6 performs 7 its operative stroke,,whereby the die 6 caused to descend upon the projecting portion of wire 18, first cutting off said portion frame-work or supporting structure 2 ;i sa from the main body thereof, andthen bend- 67 moves downward in straddling relation 7 tosaid anvil-member. The wire is thus formed into a staple 69, having its legs or points directed downward, and held against displacementby the embrace of the groove 68 of said cutaway portion 67 of'said die.

The staple being thus formed, the next operation of the machine is comprised in picking up and bunching a requisite quantity of bruslrbristles 70, and then carrying the same into position beneath the staple.

69. The mechanical means for accomplish- 111g these supportmg a mass of prepared bristles 70 results comprise a table 71 for lying endwise in properrelation to a piclt up and bunchingmeans. In order to move the massof bristles into proper relation to said pick-up and bunching means, as the quantity of the same is-reduced by the op; eration of the'machine, the following mech Mounted on said table 71 in back of tllQbllStlJS 7 O is abearing member 72 through which pass slldable guiderrods 75 is a flexible cord '76, which runs for-v 7 Connected with the forward end of said 8 wardly tosa pulley 77 mounted on said bearing member 7 2, over which it runs rear- 'wardly to an idler pulley 78 mounted in a bearing 79 at the outer extremityof said, table,the free' end of said cord bearing 'ai suspended weight 80. The'pull of, this weightlSO upon the cordtends to prop'el said guide-rods forward with a constant pressure, thus forcingthe push-plate 7a to press and feed the br stles 7O constantly toward the bristle pick-up and, hunching means. 7

The. said bristle pick-up and bunching means comprises a transverse spindle 81 mounted in bearings 82 connected with said "head bracket 3, and so disposed as to be positioned on the left of said wire cutting and forming die mechanism. Loosely mounted upon the outer extremity of said spindle 81 L is a segmental picleup plate 83, provided in its marginal periphery with a properly located 'obliquelyindented open pick-up slot 84-. An adjustable plate 85 secured in slid slot 84,and consequently the amount of-Y bristlesto be picked up and bunched there' in. Fixed upon said spindle S1, in back of. said pick-up plate 83, is a segmental driver plate 87, provided at its lower side, at its marginal periphery, with a pointed proj ecand which isadapted-to move across the 100 having a vertical passage therethrougln latter.

open end of said pick'u'p' slot 84 to close the same after the required quantity of bristles have been picked up and bunched in the A coupling stud 89 projects from the rear face of said pick up plate8 3 into a coupling slot 90 provided in said driverplate 87. Fixed upon the rearward endof said spindle 81 is a spur gear 91. J ournaled upon a supporting stud 92 connected with said head bracket 3, is a segmental gear or rack 93, which meshes operatively with said spur-gear 91, the same having an arm 94 to which is pivotally secured a connecting-rod 95, whichinterc'onnects said gear or rack 93 operatively with the upper arm of a bell{ crank lever 96 mounted in connection with said frame-work or supporting structure 2.

The lower arm of said bell-crank' lever '96 extends to apoint intermediate of the layshaft 45 and counter shaft 48, and is provided with oppositely projecting lateral studs 97 adjacent its'free end, one of said studs'being operatively engaged by a clownstroke producing cam 98 which is fixed upon said lay-shaft 45,and the other of said studs'being operatively engaged by an upstroke producing cam 99 which is fixed upon said counter shaft 48, thereby oscillating said bell-crank lever 96 to transmit 'properlytimed oscillatory movements to said bristle pickup and bunching' mecha- .'nism, as will be understood from an inspection of the drawings. V V

' Arranged in connection with said head bracket 3, in vertical alinement below said staple cutting and forming means and the plunger rod 10,- is a bristle folding member "abut against'the end of the staple cutting and forming die 6, when the latter operates,

so that it is alined ready to receive the right hand portion of thestaple when the latter is fed downward, aswill presently appear.

"The bristle folding member 100 and the left staple guide' piece 102 are cut away at their upper ends to provide a passageor opening 103 through which the-bristle pickup'and bunching means may pass to carry a bunch of bristles beneath the staple and readyto be embraced thereby. Before the staple and'bristles are fed downward, this of the guideway 4. The tension of said slot 110 formed in said outer periphery of the gate-member, so that after the bristles carried by the pick-up plate havemoved 7 I isa-nchored at its oppositeend to the back tion'which serves as a closure-member 88,

V pull-spring107 normally returns and holds pasttheend of the gate-memben'the said 1 pin will, in its movement, reach theb'ottom of said slot llO'iLllCl thereuponinove the gate-member to-closed position.

The operation of thebristle pick-up and bunching means and associated mechanism I is as "follows Vllhen the'pick-up plate 83 is in normal initial pos tion itsopen pick-up slot 84 has picked up and bunched in longitudinal arrangement a quantity of'bristles 70 from' the mass supported upon' the table 71. The wire staple having been out andformed, the transmission mechanism now operates to, impart a downward movement to said driver-plate 87. Since the pick-up plate 83 is loose on the spindle81, the driver-plate V 87 first moves "forwardrelative to the still stationary pickup plate'83 until the end of the couplingslot 90 engages the coupling stud 89. of the latter, andin so doingfirst moves the closure-member 88 in. closing relation to the open end of the pick-up slot 84, thereupon preventing the falling away of'the bunched bristles disposed in, the latter, While the continued movement of said driver-plate carries downward withit said pick-up plate, The pick-up plate is thus, moved to carry said'bunched bristles beneath and in'alinement with the previously formed staple, and in this movement the .,'gate-member 104 is closedafter the bristles carried by the pick-up plate have passed, as

indicated'in Fig. 4 of the drawings. When the bunched. bristles have thus been carried downward and positioned relative to staple, and the gate-member closed, the plunger-rod 10 is moved downward by a properly timed descending movement of the cross-head 8,

' end to engage the top of the staple, and

(the anvil-member'3'1 having in the meantime been withdrawn). The downward movement of the pluiiger-rodlO causes its force the same downward between. the

; grooved guides provided by said gate-memher and left guide piece 102, andby said right guide-piece 101. in so doing causing the legs of the staple, to embrace or straddle the bunch of bristles and then carry downward the same therewith.

- legs of the staple: enter between the upper end of the left guide piece 102 and right guide plece 101, and have passed the gatemember 10%, the opposite oscillation of said driver-plate 87 begins which results, first in moving .the closure .member 88, away from the pick-up slot 84E so that the bristles may pass out of the same with the embracing staple, and'then when the opposite end of said coupling slot engages the coupling stud 89 thereupon movlng the plck-up plate 83 back tonormal initial position, the

bristles having been carried out of the pickup slot beforethe return'movementof said pick-up plate begins. The continued downward'movement ofthe plunger-rod 10 carries the staple downward between the guide pieces 101 and 102, the br stles being engaged by the folding memberi100 to double the same end to end, as, they pass downwardly through the latter. A table 111 serves to support a suitable brush-back 112 beneath the guide-pieces and folding memher, so that the plunger-rod 10 in completing its descending movement, finally forces the staple free of the guides, and drives the same into the brush-back 112, thereby fastening the bristles to the brush-back 112, as indicated in Fig. 1 of the drawings. The cycle of operations, thus briefly described is automatically continued, inproperly timed relation to each other, the operator shifting the brush-back 1127on the table 111 to determine the positioning of the bunched bris- 'kind of transmission shown, but may use any mechanical variation thereof found expedient.

I am aware that some changes may be made in the various arrangements and combinations of the several devices and parts, as well as in the details of the construction By the time the i have operatively positioned a bunchoi .of thersame, without departing. from the scope of my invention as above described,

and as "defined in the following. claims.

Hence, I do not limit'my invention to'the exact arrangements and combinations of the various devices. andwparts as described 111 the foregoing specification, nor do I confine myself'to-theexactdetails of the constructlon of thesame asillustrated in the accompanying drawings. 1

xl'claimr 1. In brush-making machine, an oscillatable bristle gathering and feeding means,

a bristle folding means having staple guides, a normally open pivoted gate-member vmounted above and at one side of said folding means adapted to complete said staple guides whenclosed, and'means for moving said gate-member into closed position-after said bristle" gathering and feeding means tl'es relativeto said folding: means.

' 2. In-a brush-making machine, an oscillatable bristle gathering and feeding means,

a bristle folding'member having a vertical in said folding passage, one sideoflsaid folding member'being cut away to provide a'lateral passage giving the brlstles carried by said gathering and feeding means-access into alinement with said folding passage, a

pivoted gate-member mounted adj acent r to said'folding-member for closing said lateral his folding passage, grooved staple-guides withp passage thereof, said gate-member having a grooved channel adapted to aline itself with a staple-guide of said folding-member to complete the same, and means for moving said gatemember into closed position after the bristles carried by said gathering and feeding means have passed through said lateral passage. 7

" 3. In a brush-making machine, an oscillatable bristle gathering and feeding means, a bristle folding-member having a vertical folding passage, grooved stapleguides with in said folding passage, one side of said folding-member being "cut awayto provide a lateral passage giving the bristles'carried by said gathering and feeding means access into alinement with said folding passage, a

pivoted gate-member mounted adjacent to said folding-member for closing said lateral passage thereof, said gate-member being also positioned adjacent to thepath of movement of said bristle gathering and feeding means, said gate-member having a grooved channel adapted to aline itself with a staple-guide of said folding-member to complete the same,

spring means for returning the same to and V maintaining the same in normal open position, and means on. said bristle gathering and feeding means adapted during the feedmg movement of the latter to engage and.

close said gate-member after the bristles have passed through said lateral passage to operative position relative to said folding member. V

' 4.-.In a brush-making machine, an oscillatable-piok-upplate having an open oblique pick-up slot in its periphery for gathering a up a bunch of bristles froma'main supply thereof,'a'spindle upon which saidpick-up plate is loosely mounted; a driver-plate fixed on said. spindle, a pointed projection atone end of said driver-plate for closing isaid pick-up slot during the feeding movement 1 ofsaid pick-up plate, means coupling said driver- )late in .drivin 'relation to said ick- D :up'plate, saidcoupling means beingadapted to permit a preliminary limitedmovement of saiddriver-plate in advance of said pickup plate to position said pointed projection in closedor open relation, to said pick-up :slot, transmission means for oscillating said spindle, a bristle folding means having 7 staple-g'uides,,a normally openpivoted gate member mountedjat one sidepf said folding means andiadjacent to the path ofmovement of said pick-up plate; said gate-member being adaptedto eompletesai'd staple guides when closechspring means associated With said gate-member for'returning the samerto and maintainingthe same in normal open position and a stud projecting from said;- pick-up plate adapted during the feeding movement of the latter to engage and close said gate-memberaftergthe bristles have been operatively positioned. relative to said folding means.

I 5. Ina brush-making mach1ne,' a bristle for closing said pick-up slot'during the feed-' in movementof said ick-uo alate a coub V phng'stud prO ectmg from the body of said pick-up plate, said driver-plate'having aconcentric coupling slot into Which said coupling stud enters so as to permit of an initial limited movement of said driver-plate before movement is imparted to said pick-up oscillation of said spindle.

' r In testimony, that-I-fclaim the invention set forth above I have hereunto set my hand this 4th day of'June, .1918. Y 7 l p JOHN D. GLADWIN.

WVitnesses: i I

GEORGE H. VAN EMBURG, GnoRGnD. RICHARDS.

plate to permit a prior positioning of said pointed pro ect1on in operative relation to said pick-up .slot, and tI'ZLIISIIHSSlOIl means for producing a properly timed driving 

